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Finding the Fourth Proportional to 199,266.90, 298,900.35 and 80,942.10

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Solution

The fourth proportional to 199,266.90, 298,900.35 and 80,942.10 is: 121,413.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,266.90 : 298,900.35 = 80,942.10 : x
  2. Step 2: Convert to fraction form
    199,266.90/298,900.35 = 80,942.10/x
  3. Step 3: Cross multiply
    199,266.90x = 298,900.35 × 80,942.10
  4. Step 4: Simplify right side
    199,266.90x = 24,193,622,019.74
  5. Step 5: Solve for x
    x = 24,193,622,019.74/199,266.90
  6. Step 6: Final answer
    x = 121,413.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.